CVE-2026-48939 iCagenda Unrestricted Upload of File with Dangerous Type
Attackers can upload arbitrary PHP files via the attachment feature to execute remote code on Joomla sites using the iCagenda extension.
- Exploited in the wild
- Since 10 Jul 2026
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-48939?
CVE-2026-48939 is a critical vulnerability in icagenda.com iCagenda extension for Joomla, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.
Weakness: CWE-434
Which versions are affected by CVE-2026-48939?
It affects 1 product.
Products include Joomlic Icagenda.
How do I fix CVE-2026-48939?
No fix has been published for CVE-2026-48939 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 13 Jul 2026.
Is CVE-2026-48939 being exploited?
Yes. Attackers have exploited CVE-2026-48939 in the wild since at least 10 Jul 2026.
Public exploit code: 1 Nuclei template and 3 proofs of concept on GitHub.
Sources
Also known as GHSA-4rh3-rmh3-hv6h.